Cement interlocking railway-tie.



K. BOTNEN.

CEMENT INTERLOCKING RAILWAY TIE.

APPLICATION FILED MAR- 2.1918.

Patented. Apr. 30, 1918.

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Specification of Letters Patent. Pgfim-jmtqgfl Apr, 360, 191%,

Application filed March 2, 1918. Serial No 220,023.- a i i and useful Improvements in Cement Interlocking Railway-Ties, of which the following is a specification, reference being had to the accompanying drawings. v

This invention relates torailway ties, and particularly to ties or rail supporting blocks inaderof concrete or like material.

One of thejobjections heretofore found to concrete ties is that it is very diflicult to fasten the rails thereto. In other words, special devices must be provided. other than spikes for connecting the rails to the ties, and one object of this invention is to overcome this objection by providing a concrete tie so constructed that ordinary rail spikes may be initially embedded in the tie when it is made. i

A further object is to provide a tie of this character made in two sections, each of the sections carrying a spike, the two sections being adapted to be disposed in parallel abutting relation to each other, with the spikesengag'ing over opposite sides of a rail, and in this connection, a further object is to so form these sections that they will interlock with each other against lateral independent movement, that is, a movement transverse to the direction of the rails, this interlocking engagement however being so secured that it is possible to disengage the sections from each other and permit the lateral movement of the sections to disengage the rail from the tie and permit the ready insertion of a new rail or the ready replacement of defective .or damaged ties. A further object is to provide in combination with wooden ties, intermediate ties of concrete, cement or like material, each tie being formed in two interlocking sections as heretofore described, thus securing a continuous bed to which the rails are attached and also providing for the requisite resiliency in the bed which is necessary in order to keep the wheels from chattering on the rails.

My invention is illustrated in the accompanying drawings, wherein:

Figure -1 is a top plan view of a full sized railway tie constructed in accordance with my invention;

Fig. 2 is a top plan view showings inodilied form of tie in connection with ordinary rail ties; and y t a Fig. 3 is a section on the line 3-3 of Fig. 1.

Referring to these drawings, and particularly to Figsl and 3, it will be seen that my improved tie is formed in two sections 10 and 11, each of these sections being approximately rectangular in cross section and having any desired length. The secticns are intended to be disposed in abutting engagement with each other, side by side, and each of these sections is formed on its confronting face with a shoulder 12, each section to this end being reduced in width for half of its length. Disposed in each section are the spikes 13, the spike or spikes on one section having their heads directed in an opposite direction to the-spike or spikes on another section so that when the sections are placed together, as illustrated in Fig. 1, the heads of the spikes will extend over the base flange of the rail in the ordinary manner. It will be understood that both of the sections of thetie are exactly alike and are made to fit by turning them end for end. Thusonly one section need be made inasmuch as the sections are all alike and have the same dimensions but by putting two of these sections together and turning them'end for end, the complete tie is formed, 1

Now it will be obvious that when the two sections 10 and 11 are disposed against each other, as illustrated in Fig. 1, thatthey constitute a tie, one portion of which cannot move laterally independently ofthe other portion, inasmuch as any strain tending to shift one section laterally will be communicated to the other section through the shoulders 12. Therefore, the sectional'tie will act to all intents and purposes as an integral tie. At the same time, however it is obvious that the sections may be independently shifted laterally, if they are separated from each other so that the shoulders 12 are disengaged, thus freeing the sections from interlocking engagement.

The principle of construction heretofore described is applicable, of course, to ties of any desired length and transverse section. I contemplate, however, the use of ties of this character between or intermediate of the regulationwooden ties, designated 14: in Fig. 2, and in this case, these, cement ties constructed in accordance with my inrate the sections and 11 sutliciently from each other to permit the removal of these sections, without the removal of the wooden ties' also. In order to obviate this, I provide blocks 15 which may be made of wood or any other suitable material and which are forced into place between the cement ties formed of the sections 10 and 11 and the wooden ties. -These blocks may be slightly wedge shaped if desired so as to wedge the cement ties in place. This, however, is not absolutely essential. Under these circumstances, if it is desired to remove a cement tie, it is only necessary to drive out one or more of the blocks 15, whereupon the tie sections may be separated and removed laterally. It is, ofcourse, obvious that the sections 10 and 11 may be made of the usual length'of 8 feet, so as to support two rails, if desired, and that they may be used in place of the ordinary wooden ties and that they may be placed in contact with each other along the entire length of the rail or rails, so as to secure a thoroughly firm road bed. It will also be obvious that these ties may -be 'reinforced in any suitable manner and, therefore, may be made of smaller dimensions in cross section than wooden ties. Inasmuch as the spikes are embedded in the tie sections in the first instance, these spikes can be made with teeth, flanges or any other desired means for preventing the withdrawal ofthespike as shown in Fig. 3. It will 'be'obvious that with the construction illustrated in Fig. 2, a considerable saving would be effected in wooden ties and by placing my improved cement ties close together, the rails would be held at very short intervals from lateral movement.

VVhileI have illustrated a very simple form of my invention, it will be obvious, however, that the tie may be modified in form and that the detail of the interlocking connection between the tie sections may be modified, without departing from the prin ciple and spirit of the invention.

Having described my invention, what I claim is 1. A railroad tie of artificial stone formed in two longitudinally extending parallel sections, each of said sections for a portion of its length being reduced in width, where by to provide abutting shoulders on each of said sections when the sections are placed in abutting relation to each other, and spikes embedded in the sections having heads extending in opposite directions and adapted to extend over the opposite edges of a rail flange.

9. A track bed comprising wooden ties, intermediate ties of artificial stone, each of said intermediate tics composed of two longitudinally extending parallel sections, the confronting faces of the sections being formed to provide interlocking shoulders to prevent independent longitudinal movement of the sections, rail engaging members one on each of said sections having flange engaging portions extending in opposite directions and adapted to extend over opposite edges of the base flange of a rail, and blocks disposed between the side faces of the wooden ties and the side faces of the stone ties, and preventing movement of the sections away from each other.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

MAURIOE M. OBnvox,

FRANK M. HARADON.

Copies of thi s patent may be obtained for five cents each, by addressing the Commissioner of Iatents,

Washington, D. G. g 

